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aerated oil
- Thread starter maunster
- Start date
DF Sales&Marketing
Oil Tech Moderator
Maunster,
the subject of aerated oil doesn't come up too much in automotive applications, it is primarily seen in industrial and commercial equipment. However, that being said, in the automotive side, it could happen in engines if the oil level is too high and thus the crankshaft is "churning" up the oil in the pan. This causes aeration, and one of the worst things to happen is in that stage it creates what is called "boundary lubrication." if you can imagine oil with entrained air, it does not fully lubricate because of the air bubbles. Another symptom is that it creates more heat in the oil.
Aeration in engine oil could be deemed slightly different than gear oil "channeling" in a differential, especially when the oil is cold, but diffs are designed to be a "splash system" unlike the oiling system in an automotive engine. Swepco engine oils and gear oils will leave a coating of oil on the parts in the engines and differentials (and transmissions), thereby giving extra protection at the time of cold start-ups. It is just another reason why swepco products help give longer life to lubricated parts.
In automotive applications, the largest contributor would be that the oil level is too high in the engine, the remedy would be to have the correct amount. The diff level should be maintained at the correct level when checking the plug which is designed for that purpose.
the subject of aerated oil doesn't come up too much in automotive applications, it is primarily seen in industrial and commercial equipment. However, that being said, in the automotive side, it could happen in engines if the oil level is too high and thus the crankshaft is "churning" up the oil in the pan. This causes aeration, and one of the worst things to happen is in that stage it creates what is called "boundary lubrication." if you can imagine oil with entrained air, it does not fully lubricate because of the air bubbles. Another symptom is that it creates more heat in the oil.
Aeration in engine oil could be deemed slightly different than gear oil "channeling" in a differential, especially when the oil is cold, but diffs are designed to be a "splash system" unlike the oiling system in an automotive engine. Swepco engine oils and gear oils will leave a coating of oil on the parts in the engines and differentials (and transmissions), thereby giving extra protection at the time of cold start-ups. It is just another reason why swepco products help give longer life to lubricated parts.
In automotive applications, the largest contributor would be that the oil level is too high in the engine, the remedy would be to have the correct amount. The diff level should be maintained at the correct level when checking the plug which is designed for that purpose.
Thanks for all the info! I only bring it up because I've heard that that can be one misleading cause for what some people mistakingly diagnose a lifter noise. If I check the dipstick after the engines been running a while it the oil seems a bit too "churned" if you know what I mean.